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Emissions Inventory
Frequently Asked Questions (FAQs)

Last Updated:
November 27, 2017

New! 2018 Emissions Inventory WorkshopOur annual free workshop will be held on Tuesday, January 23, 2018, at the National Weather Center in Norman and again on Wednesday, January 31, 2018, at the OU Schusterman Center in Tulsa. Attendees will learn about reporting process changes and improvements, QC procedures, and view training in Redbud, our secure online reporting application. We will also have a section on e-permitting and new permitting guidance. Details and how to register...

If you have a specific question about a particular set of circumstances at your facility, contact us directly.

The Emission Inventory Section makes every effort to track facilities' Emissions Inventory reporting requirements; however, it is the owner/operator's responsibility to know which facilities must report. Contact us for assistance in identifying a comprehensive list.

A permit may be cancelled when a facility permanently ceases operation or when either DEQ or the facility representatives determine that the facility qualifies for "permit exempt" or "de minimis" status as defined in OAC 252:100-7. A facility representative may self-determine the facility's eligibility to claim either status and request DEQ cancel the permit. A cancellation request should be made in writing and address the following:

Provide reason for cancellation (closure, permit exempt, de minimis)

Reference the permit number

Provide facility and company name

Provide date when facility ceased operations or became eligible for "permit exempt" or "de minimis" status

Where the facility has ceased operations, please indicate if emitting equipment has been removed or remains in place. Call 405-702-4100 and ask to speak with permitting staff for additional guidance.

The Oklahoma Air Pollution Control Rules in OAC 252:100-5-2.1(a) state, "The owner or operator of any facility that is a source of air emissions shall submit a complete emission inventory annually on forms obtained from the Division." Therefore, any forms other than those made available from the Department are not acceptable for reporting.

Using Redbud as a tool for reporting serves as an acceptable "form" for reporting. For hard copy submissions, Turn Around Documents (DEQ Form #100-730) are available on the AQD forms web page.

The company Responsible Official (RO) is issued a User ID and password via email around the first business day in January. A new password is created annually. This ID and password can be used to access information for that company's facilities here.

Within Redbud, a current year TAD for a facility can be created and downloaded in PDF format for printing prior to and/or after final submission. Click the 'Generate Turnaround Document' button on each facility's page in Redbud.

Yes. Enter the Additional Contact's details on the Responsible Official page in Redbud. This person will be sent a copy of the confirmation email when it is sent to the RO. This information will not be stored or used elsewhere.

No. The RO does not need to physically sign the final submission when using Redbud. Under Oklahoma Statute (12A O.S. sec. 15-101 et seq.), compliance with the conditions on the Redbud Attestation (Agreement) page results in a legally binding electronic signature. Users must agree to this Attestation each time they log in to Redbud.

However, the RO does need to physically sign the certification page when submitting a hard copy submission or an amendment to a previously submitted Emission Inventory.

All supporting data, including actual production, throughput, and measurement records along with engineering calculations and other data utilized in accordance with OAC 252:100-5-2.1(d), must be maintained for at least 5 years by the current owner or operator at the facility in conjunction with facility records of the emission inventory. This information must either be submitted to the Division or made available for inspection upon request.

If DEQ finds an error, a company may be required to submit corrections for inventories submitted over the past 5 years. If the company finds an error, the company need only correct the error if it occured within the last three years. Contact our office for instructions on submitting an amendment.

If the removal of permitted equipment causes a facility operating under an Individual or General Permit to become eligible for a Permit by Rule, the facility must still submit an emissions inventory for the year in which the equipment was removed. If the facility was eligible for a Permit by Rule the entire year (and it is not a required triennial reporting year), the facility does not need to submit an emissions inventory. The emissions inventory from the prior year will be used to satisfy the PBR reporting schedule.

Although the Emissions Inventory Section makes every effort to track facilities' reporting requirements, contact us if you believe there is a discrepancy.